Hydrangeas forum: Yellow leaves on older, bottom leaves on my hydrangea.

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Deklan
Jun 27, 2016 9:28 AM CST
I planted Twist and Shout hydrangeas in large pots on May 5th and they appeared to be doing fine. Then, a few days ago, I noticed that the lower leaves are turning yellow and falling off. According to the last thread on this, my plant needs nitrogen. Should I do that and if so in what form or should I just sit tight and see what happens.
Name: Neal Linville
Winchester, KY (Zone 6a)
Charter ATP Member I was one of the first 300 contributors to the plant database! Bulbs Cottage Gardener Roses Irises
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gemini_sage
Jun 28, 2016 4:46 PM CST
I don't think nitrogen deficiency would necessarily only effect the older, lower leaves. However I do think light, frequent feeding is a good idea for container plants. It sounds to me like they may have dried out too frequently- hydrangeas are sensitive to this.
"...and don't think the garden loses its ecstasy in winter. It's quiet, but the roots are down there riotous." Rumi
Name: Bob
Vernon N.J. (Zone 6a)
Charter ATP Member Plant Database Moderator I was one of the first 300 contributors to the plant database! Forum moderator Heucheras Echinacea
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NJBob
Jun 28, 2016 7:09 PM CST
From what I read yellowing of older leaves is normally over watering or a lack of nitrogen, but to use a fertilizer with no phosphorus. On newer leaves it is most likely a iron deficiency.
Name: Neal Linville
Winchester, KY (Zone 6a)
Charter ATP Member I was one of the first 300 contributors to the plant database! Bulbs Cottage Gardener Roses Irises
Garden Ideas: Level 2 Celebrating Gardening: 2015
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gemini_sage
Jun 29, 2016 4:12 AM CST
I didn't even think of too much water, but I have seen that symptom before. I think I'm so used to hydrangeas being such water hogs it didn't occur to me.

Bob, glad you mentioned that- I've got 2 hydrangeas with yellowing new leaves and adding some soluble nitrogen didn't help. I've used Ironite product in the past and need to get some more.
"...and don't think the garden loses its ecstasy in winter. It's quiet, but the roots are down there riotous." Rumi

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